Home / 2,419.40-3,629.10-1,843.40

Finding the Fourth Proportional to 2,419.40, 3,629.10 and 1,843.40

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Solution

The fourth proportional to 2,419.40, 3,629.10 and 1,843.40 is: 2,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.40 : 3,629.10 = 1,843.40 : x
  2. Step 2: Convert to fraction form
    2,419.40/3,629.10 = 1,843.40/x
  3. Step 3: Cross multiply
    2,419.40x = 3,629.10 × 1,843.40
  4. Step 4: Simplify right side
    2,419.40x = 6,689,882.94
  5. Step 5: Solve for x
    x = 6,689,882.94/2,419.40
  6. Step 6: Final answer
    x = 2,765.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.